CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 48,642	$ 35,277
Short-term investments	240,596	268,339
Accounts receivable	3,617	1,205
Inventory, net	16,238	16,101
Other current assets	10,743	9,779
Total current assets	319,836	330,701
Property, plant and equipment, net	17,475	18,856
Long-term investments	36,778	25,825
Operating lease right-of-use assets	17,267	18,007
Other assets	4,656	4,644
Total assets	396,012	398,033
Current liabilities:
Accounts payable	8,757	9,848
Accrued expenses	24,281	22,162
Operating lease liabilities, current portion	19,368	19,259
Total current liabilities	52,406	51,269
Operating lease liabilities, less current portion	94,710	98,517
Liabilities related to the sales of future royalties, net	117,857	112,625
Other long-term liabilities	4,334	4,635
Total liabilities	269,307	267,046
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.0001 par value; 10,000 shares authorized; no shares designated or outstanding at March 31, 2024 or December 31, 2023, respectively	0	0
Common stock, $0.0001 par value; 300,000 shares authorized; 191,909 shares and 191,384 shares issued at March 31, 2024 and December 31, 2023, respectively; 183,624 shares and 191,384 shares outstanding at March 31, 2024 and December 31, 2023, respectively;	19	19
Capital in excess of par value	3,644,140	3,608,137
Treasury stock, at cost; 8,285 shares as of March 31, 2024 and none as of December 31, 2023, respectively	(3,000)	0
Accumulated other comprehensive income (loss)	(403)	80
Accumulated deficit	(3,514,051)	(3,477,249)
Total stockholders’ equity	126,705	130,987
Total liabilities and stockholders’ equity	$ 396,012	$ 398,033